Butterfly boneless chicken breasts to create pockets. Season inside and out with salt, pepper, and a little garlic powder. Prepare a filling by sautéing spinach with garlic until wilted, then squeezing out excess liquid. Mix the spinach with ricotta, shredded mozzarella, or goat cheese and a pinch of nutmeg.
Stuff each breast with the mixture and secure with toothpicks or kitchen twine. Sear in an ovenproof skillet for 2–3 minutes per side until golden, then finish in a 375°F (190°C) oven for 12–18 minutes until internal temperature reaches 165°F (74°C).
Tips:
This method yields a juicy main course with a flavorful spinach center.